Udon Prison Escape

Now that Big Mom entered Udon and is now fighting Queen, what's going to happen? We have Luffy and Hyogoro stuck in the ring, Kawamatsu chained up in jail, and Kidd and Killer submerged. How will they be freed and how can they escape?

Also will Kaido personally make an appearance in Udon to stop Big Mom? He arrived in Kuri after all to take down Luffy!